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Hyannis December Weather

Averages and records for weather in Hyannis, Massachusetts in the month of December.

Typical Hyannis December Weather 1991–2020
Average daily high	44.4 °F
Average daily low	29.4 °F
Average monthly precipitation	4.8 inches
Average monthly snow	1.8 inches
Daily chance of precipitation	37.9%
Daily chance of snow	3.0%

Hyannis December Weather Records 1893–2024
Highest temperature	66 °F	December 8, 2022
Lowest temperature	-9 °F	December 20, 1942
Highest daily low	54 °F	December 25, 2015
Lowest daily high	8 °F	December 21, 1942
Hottest average high temperature	53.6 °F	2015
Coldest average high temperature	31.2 °F	1989
Most daily precipitation	3.3 inches	December 27, 1969
Most monthly precipitation	9.9 inches	2019
Most daily snow	12.0 inches	December 7, 1910
Most monthly snow	25.0 inches	1904

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
December 1	48.0	32.7	65	9
December 2	47.7	32.5	61	11
December 3	47.5	32.3	61	9
December 4	47.3	32.1	65	7
December 5	46.9	31.8	66	10
December 6	46.6	31.5	64	9
December 7	46.3	31.2	61	10
December 8	46.1	31.1	66	1
December 9	45.9	31.0	60	-8
December 10	45.7	30.9	65	2
December 11	45.6	30.7	63	8
December 12	45.3	30.4	60	4
December 13	45.0	30.1	63	2
December 14	44.7	29.8	60	-3
December 15	44.5	29.4	61	7
December 16	44.3	29.2	62	4
December 17	44.0	29.0	61	-3
December 18	43.8	28.7	61	7
December 19	43.5	28.4	58	4
December 20	43.3	28.1	58	-9
December 21	43.2	27.9	64	-4
December 22	43.1	27.7	56	3
December 23	42.9	27.6	60	-3
December 24	42.9	27.5	61	0
December 25	42.6	27.3	64	-6
December 26	42.4	27.0	65	-2
December 27	42.1	26.8	60	-2
December 28	42.0	26.6	59	4
December 29	41.9	26.4	59	-8
December 30	41.8	26.3	63	-9
December 31	41.7	26.2	61	-7

Weather Station Details

Years	Station	Coordinates
1893–2024	Hyannis	location